/* --- GLOBAL RESET --- */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Poppins', sans-serif; background: #f4f7f6; color: #333; display: flex; flex-direction: column; min-height: 100vh; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; }

/* --- HEADER --- */
header { background: #2c3e50; color: white; padding: 15px 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.logo { font-size: 24px; font-weight: bold; color: #f39c12; }
.nav-links a { margin-left: 20px; font-weight: 500; color: #ecf0f1; }
.nav-links a:hover { color: #f39c12; }

/* --- FOOTER --- */
footer { background: #222; color: #ccc; text-align: center; padding: 20px; margin-top: auto; }
footer a { color: #f39c12; }

/* --- LAYOUTS --- */
.container { width: 90%; max-width: 1200px; margin: 30px auto; }
.card { background: white; padding: 20px; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.05); }

/* --- FORMS --- */
.auth-box { max-width: 400px; margin: 50px auto; background: white; padding: 30px; border-radius: 8px; box-shadow: 0 4px 15px rgba(0,0,0,0.1); text-align: center; }
input, select, textarea { width: 100%; padding: 12px; margin: 10px 0; border: 1px solid #ddd; border-radius: 5px; }
.btn { background: #27ae60; color: white; padding: 12px 20px; border: none; border-radius: 5px; cursor: pointer; width: 100%; display: inline-block; font-size: 16px; }
.btn:hover { background: #219150; }
.btn-small { width: auto; padding: 8px 15px; font-size: 14px; }
.btn-danger { background: #e74c3c; }

/* --- PRODUCT GRID --- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 25px; }
.product-card { background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.1); transition: transform 0.2s; }
.product-card:hover { transform: translateY(-5px); }
.product-card img { width: 100%; height: 200px; object-fit: cover; }
.p-info { padding: 15px; text-align: center; }
.price { color: #e74c3c; font-size: 18px; font-weight: bold; margin: 10px 0; }

/* --- ADMIN LAYOUT --- */
.admin-wrapper { display: flex; min-height: 100vh; }
.sidebar { width: 250px; background: #34495e; color: white; padding: 20px; flex-shrink: 0; }
.sidebar a { display: block; padding: 15px; color: #bdc3c7; border-bottom: 1px solid #2c3e50; }
.sidebar a:hover { background: #2c3e50; color: white; }
.admin-content { flex: 1; padding: 30px; }
table { width: 100%; border-collapse: collapse; background: white; margin-top: 15px; }
th, td { padding: 12px; border-bottom: 1px solid #ddd; text-align: left; }
th { background: #f8f9fa; }

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 768px) {
    header { flex-direction: column; text-align: center; gap: 15px; }
    .nav-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
    .nav-links a { margin: 0 5px; }
    
    .admin-wrapper { flex-direction: column; }
    .sidebar { width: 100%; text-align: center; }
    .sidebar a { display: inline-block; border: none; padding: 10px; }
    
    table { display: block; overflow-x: auto; }
}